docs: def changelist_view(self, request, extra_context=None, *args, **kwargs):
          """
          Handle the changelist view, the django view for the model instances
          change list/actions page.
          """
          extra_context = extra_context or {}
          extra_context['EDITOR_MEDIA_PATH'] = settings.MEDIA_PATH
          extra_context['EDITOR_TREE_INITIAL_STATE'] = settings.TREE_INITIAL_STATE
  
          # FIXME
          return self.old_changelist_view(request, extra_context)